Let's be clear: You should NOT be using a daisy chain to anchor yourself to a belay.

Daisy chains are designed for aid climbing only and to support body weight only. When aid climbing properly, the rope is ALWAYS in the system, and in the event of a fall, the energy absorbing capacity of the rope is used. If you use a daisy chain to anchor yourself to a belay, you've now taken the rope out of the equation and are potentially subjecting yourself and the daisy chain to a possible shock-loading scenario. You should NEVER be impact loading a daisy chain. NEVER. Daisy chains and runners don't stretch much, which means they don't absorb much energy. This increases the load on the anchor, and you. Worse-case scenario under a severe-impact load, a daisy can snap. Best-case scenario under a severe-impact load, you'll snap your back.

Basically, it's possible that when you clip a second loop, or pocket of your daisy, to the main carabiner, attached to the end loop of your daisy, that the end result MAY really be the biner just being clipped across the tack of the pocket, and therefore being really, REALLY weak—as low as 500 pounds. Below is a video that clearly shows the danger. You may have to watch it a few times, because it's pretty freaker crazy, and no, I'm not a magician.

QC LAB: DAISY CHAIN DANGERS


Crazy eh? It's almost like you have a 50/50 shot of having the twist in the extra pocket as your shorten up your length. With the correct twist, and if impact loaded, the pocket would blow and you'd be okay, BUT with the incorrect twist and even a very small impact load (say your foot skating off the belay ledge and you falling onto your daisy), the pocket would blow and you'd be airborne. Those odds aren't good enough for me. Use a second carabiner to clip up short.

From our instructions: